Hornady known for their ever popular hunting and self defense ammunition has launched a FREE!! mobile ballistic calculator app called the 4DOF( 4 Degrees of Freedom.) The mobile app for APPLE and ANDROID will allow users to calculate trajectories even without wireless data connectivity.
With most ballistic calculators available they only provide 3 axis of input. Windage, elevataion, and rage.
Hornady’s adds “adds its movement about its center of gravity and subsequent angle relative to its line of flight, which is the fourth degree of freedom”
For more information on this app. CLICK HERE